Toilet bowl brush



FIG. 1 is a front elevational view of a toilet bowl brush showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a toilet bowl brush, as shown and described. 